Assembly for preparing an injectable composition

Abstract

The present invention relates to an assembly ( 1 ) for preparing an injectable sealing composition for scaling an anchor bolt in a dedicated recess of a rock structure, characterised in that the assembly comprises: —at least one storage means ( 2 ) for storing at least one first component, referred to as the resin-based silicate component, —a storage means ( 3 ) for storing a second component, referred to as the diphenylmethane diisocyanate-based MDI component, —a storage means ( 4 ) for storing an organic or mineral filler, —a device for generating a first mixture ( 5 ) configured to produce a mixture combining at least an amount of the MDI component with at least an amount of filler, —a device for generating a second mixture ( 6 ) configured to produce a mixture combining at least an amount of the first mixture with at least an amount of the silicate component.

1 . An assembly for preparing an injectable sealing composition for the sealing of an anchor bolt in a dedicated recess of a rock structure, wherein the assembly comprises at least:
 at least one storage means of at least one first component, called silicate component, comprising at least one silicate resin-based liquid component,   a storage means of a second component, called MDI component, comprising at least one liquid component based on diphenylmethane diisocyanate,   a storage means of an organic or mineral filler,   a device for generating a first mixture linked, on the one hand, to the storage means of the MDI component and, on the other hand, to the storage means of a filler, configured to produce a first mixture combining at least a quantity of the MDI component with at least a quantity of organic or mineral filler,   a device for generating a second mixture linked, on the one hand, to the device for generating a first mixture and, on the other hand, to at least one storage means of at least the silicate component, configured to produce a mixture combining at least a quantity of the first mixture with at least a quantity of silicate component.   
     
     
         2 . The assembly for preparing an injectable sealing composition as claimed in  claim 1 , wherein the assembly for preparing an injectable sealing composition also comprises a device for injecting at least a quantity of the second mixture, this injection device being mounted at the output of the device for generating a second mixture. 
     
     
         3 . The preparation assembly as claimed in  claim 1 , wherein, the silicate component being stored by at least, on the one hand, a storage means of a fastsetting silicate resin-based silicate component or of a setting accelerator and, on the other hand, a storage means of a slowsetting silicate resin-based silicate component, the assembly also comprises a device for generating an additional intermediate mixture combining at least a proportion of fast-setting silicate resin-based silicate component or of setting accelerator with at least a proportion of slow-setting silicate resin-based silicate component. 
     
     
         4 . The preparation assembly as claimed in  claim 1 , wherein the assembly also comprises a dispensing command and control unit on a device for generating a mixture of at least two stored components among the storage means of the assembly. 
     
     
         5 . The preparation assembly as claimed in  claim 4 , wherein the dispensing command and control unit is associated with at least one sensor for evaluating at least one external parameter. 
     
     
         6 . The preparation assembly as claimed in  claim 4 , wherein the dispensing command and control unit is associated with at least one user interface. 
     
     
         7 . The preparation assembly as claimed in  claim 4 ,
 wherein the assembly for preparing an injectable sealing composition also comprises a device for injecting at least a quantity of the second mixture, this injection device being mounted at the output of the device for generating a second mixture, and   wherein the dispensing command and control unit is associated with the injection device and configured to be actuated when the injection device is operating.   
     
     
         8 . The preparation assembly as claimed in  claim 1 , wherein the device for generating the first mixture involves at least one mixing mechanism. 
     
     
         9 . The preparation assembly as claimed in  claim 1 , wherein the device for generating the second mixture involves at least one static mixer. 
     
     
         10 . The preparation assembly as claimed in  claim 1 , wherein the device for generating the second mixture involves at least one dynamic mixer. 
     
     
         11 . The preparation assembly as claimed in  claim 1 , wherein the assembly comprises at least one frame-forming support structure arranged to allow a joint transportation of the different constituent elements of the assembly. 
     
     
         12 . An injectable sealing composition obtained by a preparation assembly as claimed in  claim 1 , wherein the sealing composition comprises at least:
 a component, called silicate component, formed by at least one silicate resin comprising at least a slow-setting resin and/or a fastsetting resin and/or a setting accelerator,   a component, called MDI component, formed by at least a mixture of diphenylmethane diisocyanate,   an organic or mineral filler.